/*
 * This file contains code from "C++ Primer, Fourth Edition", by Stanley B.
 * Lippman, Jose Lajoie, and Barbara E. Moo, and is covered under the
 * copyright and warranty notices given in that book:
 * 
 * "Copyright (c) 2005 by Objectwrite, Inc., Jose Lajoie, and Barbara E. Moo."
 * 
 * 
 * "The authors and publisher have taken care in the preparation of this book,
 * but make no expressed or implied warranty of any kind and assume no
 * responsibility for errors or omissions. No liability is assumed for
 * incidental or consequential damages in connection with or arising out of the
 * use of the information or programs contained herein."
 * 
 * Permission is granted for this code to be used for educational purposes in
 * association with the book, given proper citation if and when posted or
 * reproduced.Any commercial use of this code requires the explicit written
 * permission of the publisher, Addison-Wesley Professional, a division of
 * Pearson Education, Inc. Send your request for permission, stating clearly
 * what code you would like to use, and in what specific way, to the following
 * address: 
 * 
 * 	Pearson Education, Inc.
 * 	Rights and Contracts Department
 * 	75 Arlington Street, Suite 300
 * 	Boston, MA 02216
 * 	Fax: (617) 848-7047
*/ 

#include "algs_preamble.h"
#include "Sales_item.h"

int main() 
{
    istream_iterator<Sales_item> item_iter(cin), eof;
    Sales_item sum;     // initially empty Sales_item
    sum = *item_iter++; // read first transaction into sum and get next record

    while (item_iter != eof) {
        if (item_iter->same_isbn(sum))
            sum = sum + *item_iter;
        else {
            cout << sum << endl;
            sum = *item_iter;
        }
        ++item_iter;  // read next transaction
    }
    cout << sum << endl;  // remember to print last set of records
    return 0;
}
